I have a 2020 Income tax question

I live in Wisconsin am 70 years old file joint Wisconsin and Federal income taxes , The Property tax deduction I can use for my income tax is substantial to me $3,000 dollars , When (What Year ) do I have to pay it to use it as a tax deduction 2020 or January 2021. Thank You Jim Ziegelbauer West Bend Wi

Sounds like a question for your CPA……

Always in the year it was PAID .

Thank YOU most people give me a stupid answer like Study the tax laws